clarke



lTo aZZ whom it may concern:

UNrTnn STATES PATENT Trice@ ELIZUR E. CLARKE, OF NE\V HAVEN, CONNECTICUT, ASSIGNOR TO FRANKLIN N. CLARKE, OF SAME PLACE.

Y MACHINE FOR OUTTlNG PASTEBOAP-.D FOR BOXES.

Specification forming part of Letters Patent- No. 6,5122 dated February 21,1855.

To enable others skilled in the art to make and use my improvements, I will proceed to describe the construction and operation of the same.

A is the cutter-roll; B, the cutter-beam, sup-v ported at each end by standards C C.

Be it known that I, E. E. CLARKE, of New Haven,in the county of New Haven and State of Connecticut, have invented new and useful- Improvements in Machine for Cutting Pasteboard for Boxes; and I do hereby declare the following to be a full, clear, and exact description of the construction and operation of the same, when taken in connection with the accompanying drawings and the letters of reference marked thereon, and which said drawings constitute part of this specitication, and represent, in

Figure 1, an end view; Fig. 2, a plan or top view; Figs. 3, 4, and 5, sectional views of parts enlarged, and in Figs. 6 and 7 detached parts still more enlarged.

In the several gures the same letters and characters indicate the same parts.

lWIy invention relates to improvements in the manner of holding and adjusting the cutters in the machine for cutting pasteboard for boxes, for which Letters Patent were issued to me bearing date the 3d day of March, 1857, and in even date herewith I have filed an other -application for other improvements.

My invention consists, first, in a new mode of constructing cutters without the employment of a cutter-stock, by combining with a cutter-bar havingtwo side grooves and one top groove a cutterholder slotted or groeved vertically for adjustment on a binding-bolt, and a horizontally-sliding stud made in the form of a cross or T, T, so that the head or horizontal part is embedded and moves in the groove in the bar, while the vertical part is located and moves in the groove in the cutterholder, together with sliding fork and collarnut; secondly, in a cutter with its several parts the same as the next above referred to, but whose adjustment is effected by a third groove in the side of the cutter-bar, a corresponding groove being made in a horizontal beam or cap attached to the cutter-bar at its two ends so as to form a suitable space between for the groove of the screw-nut; thirdly, in the manner hereinafter described of suspending or placing a rule or scale in a suitable position in relation to the edges of the cutters for the purpose of accurately measuring and guiding in the horizontal adjustment of the same.

one, l), straight and inclined, the other, D',

bent, in order to bring the cutters a a into the proper position on the cutter-roll, but am not confined to either form, as both may be straight v and inclined, as D, or both bent, as D', or either one inclined and the other bent, it only being a matter of change in. the form of the beam.

To fasten the cutter-holders to the beam I make a groove, c, in the sides of the beam, into which Iplace a T-shaped guide, d. (See Figs. 6 7 8.) The tail of the T lies upon the side of the beam, and projects wholly therefrom. I make a groove, e, in the cutter-holder D, (see Figs. 6 and 7 to fit and set over the tail of the guide d. This keeps the cutter-holder perpendicular. I make a second groove, f, T- shaped, into which I set the head of a bolt, g. The said bolt extends outdthrou gh a slot in the cutter-holder D. I turn a nut, h, onto the bolt and down hard upon the cutter-holder, which binds the holder securely to the beam, and when I wish to change the position of the cutterl loosen the nut h and slip the cutterholder, and with it the bolt g and guide d, to the position desired, and again turn down the nut to secure the holder in that position.

To raise or lower the cutter, as it is required to do to partially or entirely cut through the pasteboard, I form a screw, i, upon the top of the cutter-holder, and on the said screw I place a nut, a, its upper edge milled for convenience in turning, and I make a. groove around the said nut, which sets into a forked piece, o, (see Fig. 4,) projecting from the beam and held in a dovetail groove, p, on the beam, so that the said fork o may be moved freely along the beam. By turning the nut a down upon the screw the nut will rest upon the fork o, and consequently draw the cutter-holder up, or, if to force-the holder down, reverse the operation; or, as shown for the adjustment of the cutter-holder D', Fig. 4, I make the nut n the same as I have described for the holder D, but instead of the fork I make a groove in the beam, forming the lip ^r to fit the groove in I represent in Fig. 4 two cutter-holders,

the nut, and place' a bar, N, constructed with a similar groove and lip, outside ofthe nut and parallel With the beam. By turning the nut as before described, to adjust the holder D the same results, will be accomplished.

For convenience otl adJusting the cutters for cutting different Widths, I place measures R,

(see Figs. and 4,) supported in proper guides, s, upon one side, and guides on thestandards to support the one upon the other side. l.) This arrangement brings the very near the cutter, so that they may be set with the utmost accurac The graduated scale or rule `may be placed on top of tli'e cutteibar, and, for the purpose of accurately measuring the distances between cutter-holder slotted vor,g-roovedvertically for adjustment on abinding-bolt, and horizon tallysliding cross or T stud, together with the horizontally-sliding fork' and collar-screw for the vertical adjustment of the cutters, substantially as set forth.

2. The attachment to the cutter-bar of' the Yparallel or horizontal beam or cap set at a distance apart to admit of the groove of the screw-nut, in combination with grooves in both the said cutter-bar and beam to admit ot' the collar of the screw-nut, the whole being arranged for operation substantially as set forth.

3. The mode herein described of locating 4 and holding a rule or scale in its proper relation with respect to the cutters by combining with the cutter-bar and uprights brackets or the equivalents thereof in the manner substantially as herenbei'ore shown and described.

f ELIZUR E. CLARKE. 

